| Field | Offset | Width | STM32F100 | STM32F101 | STM32F102 | STM32F103 | STM32F107 |
|---|---|---|---|---|---|---|---|
| FACT0 | 0 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FACT1 | 1 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FACT2 | 2 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FACT3 | 3 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FACT4 | 4 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FACT5 | 5 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FACT6 | 6 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FACT7 | 7 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FACT8 | 8 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FACT9 | 9 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FACT10 | 10 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FACT11 | 11 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FACT12 | 12 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FACT13 | 13 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |